Valve



Get. 6, 1931. H. T. wQoLsoN ET Al.

VALVE Filed March 11, 1929 INVENTOR MFR) 7: WOOLcS'O/V Me By ANDREW p e: a

0. EUR G565.

ATTORNEY Patented Oct. 6, 1931 UNITED sA'r-Es PATENT HARRY T. WOOLSON, OF DETROIT, MICHIGAN, AND AN DREW O. BURGESS, OF BROOKLYN, NEW YORK, ASSIGNGRS Ti) CHRYSLER COEPGRATIGN,- OF DETRBIT, MICHIGAN, A

CORPORATION OF DELAWARE VALVE Application filed March 11, 1529. Serial No. 346,181.

This invention relates to a valve and more particularly to a thermostatic valve adapted for opening and closing a passage, depending on the temperature of a fluid in the passage.

Anobject of the invention is to provide a valve for regulating the amount or" flow of a liquid through the passage and to regulate that valve by a thermostatic member dependent upon the temperature of the liquid around 0 or passing through the Another object is to provide a valve particularly adapted to the cooling system of an internal combustion engine.

Another object of the invention is to provide an inexpensive valve which may be applied in practically any passage without altering the design of the structure in which the valve is to be used.

Other objects and advantages of the invention will more fully appear from the following description taken in connection with the accompanying drawings, in which:

Fig. 1 is a top plan view of the valve.

Fig. 2 is a bottom plan view t the valve.

Fig. 3 is a longitudinal sectional view through the valve showing an adaptation of the same in a passage, such as the water chamher of an internal combustion engine, parts thereof being broken away and in section.

Fig. 4 is a sectional view taken on line 4-4 of Fig. 2 viewed in the direction indicated by the arrows.

Referring to the drawings wherein we have illustrated a particular adaptation of the invention, the reference numeral 10 designates a flange forming the body portion of the valve. The flange is provided with a central annular opening 12 and openings 14. The flange 10 is adapted to be secured between a pair of united members such as the neck 16 of a water acket 18 and the outlet pipe 20. The flange 10 is bolted between the pipe 20 and neck 16, secured in place by bolts 22 which extend through the openings 14. A disc 24 is adapted to fit the opening 12 and is pivotally supported on the body portion 10.

A rod 26 is diametrically positioned across the opening 12 having one side of its opposite ends flattened to rest on one surface of the body portion 10 and is secured thereto by screws 28. A pair of recesses 30 are formed on the rod 26 and a pair of clamps 32 are fitted therein. The free ends of the clamps 32 are secured to the disc 24 by screws 34. A depressed portion 38in the disc 24 fits over the rod 26 at one side thereof and the clamps 32, in the recesses 30, are on the opposite side of the rod 26, thus forming a pivotal connection between the disc 24 and the rod 26. The central portion of the disc 24 is provided with an elongated opening 40 and the opening is enclosed on one side by a semi-cylindrical housing 42. As shown on the drawings, the housing is formed by a pair of side walls 44 and a semi-cylindrical member 46, welded or otherwise secured together. It will be understood, however, that this depressed chamber may be formed by stamping the metal of the disc 24 or any other suitablemeans.

A slot 48 has been provided in the outer periphery of the rod 26 extending longitudinally thereof from one end thereof to a point beyond the center, which receives one end of a coiled bimetallic member 50. It will be understood that the coil member 50 is formed from a wellknown thermostatic material. such as two metals. brass and steel, joined together into a unitary strip. The inner end of the coil 50 is placed in the open end of the slot 48 and slid to the center of the rod 26. The disc 24 is then placed over the rod with the coil extending into the semi-cylindrical housing 42 and the clamps are applied to the disc fitting the recesses 30. The rod is then secured to the base by screws 28 and the opposite end of the coil 50 secured to one side of the disc 24 as at 52. A suitable stop, such as a screw 54, limits the angular movement of the disc 24, preventing the latter from going beyond its closed position in one direction only.

The disc 24, when subjected to atmospheric temperature, is normally closed, but as the temperature around the valve is raised, the disc is pivoted around the rod 26 by the expansion of the coil 50, thus varying the amount of the passage through the opening 12 in proportion to the temperature of the fluid.

ill)

@installed in practically arrangement of parts, may

an internal combustionengine.

' other than by' the terms of -:the

claims.

on said rod,

Vhen such a device is used in the cooling system of an internal combustion engine, the circulation of the liquid through the water jacket and radiator is prevented at low temperature, but as the engine heats the disc 24: is gradually opened allowing the fluid to circulate.

By the provision of the semi-cylindrical chamber 42 around the coil the disc 2 L forms a complete closure for the opening'lQ and when the disc is in its closed position the passage is entirely shut ofi so that there is no flow through the opening 12.

It will be understood that the device is inexpensive to manufacture and is very easily any passage without designing a passage particularlyadapted to receive the device.

Various changes, including the size and be made without departing from the spirit of the invention andv the device :may be used'on any passage wherein it is desired to restrict the tlowof a fluid other than that of the cooling system of it; is not invention appended intended to limit the scope of the hat we claim. is:

1. In a member having a passageway therein, a va ve comprising a substantially wplanular bodyporfion extending transversely of sa d passageway and havlng anopenlng ,there-m, a closure for the opening pivotally supported on said body portion, a'depressed portion on sand closure', and a coiled bimetal- 'lic'connection between said closure and said body'portion in said depressed portion.

' 2. A valveof the class described comprising a relatively thin 'platedilre body portion having'an opening therein. and adapted for crosswise placement in a liquid passage, a rod across the opening'and carried 'by' said body portion, a pivotally mounted, closure and a bimetallic member having one end thereof held'stationary withzrespect to said body portionand its opposite end-secured to said closure.

3. A valve of the class described comprising a platedike body portion having an opening therein and adapted for crosswise placement in a liquidpassage, a rod diametrically arranged across the opening and carried by said body portion, a coiled bimetallic member around said rod having one end thereof l secured to said rod, and a closure for the openon said rod,.the opposite end sure ing in the body portion pivotally mounted of said hito said clometallic member being secured 4. A valve of the class described comprising a planular body portion for forming a partial obstruction in a liquid passage and having an opening therein, a rod diametrically arranged across the opening and carried the opening ing a portion of said rod,

by said body portion, a coiled bimetallic member around said rod having one end thereof secured to said rod, a closure for the opening in the body portion pivotally mounted on said rod and a depressed portion on said closure embracing substantially half of the bimetallic member, the opposite end of said bimetallic member being secured to said closure.

A valve of the class described comprising a body portion having an opening therein, a rod-across the opening, a closure for having a semi-cylindrical channel therein journaled on said rod, a curved clamp secured to said closure and embraca coiled bimetallic member around said rod having its opposite ends secured, respectively, to said rod and to said closure, and a depressed portion on said closure embracing aportion of said coil.

6. A valve of the class described comprising a relatively thin flat body portion having an-opening therein, a closure of substantially the same thickness of said body portion for the opening pivotally supported on sai d body portion, a coiled bimetallic connection: between said closure an d said body portion having its axis substantially. in the plane oi? said closure, and a depressed portion in said closure embracing aportion of said connectimi;

.ing a body portion havingan opening therein,

a rod extending across said opening, a closure for said opening having a seat therein journaled on said rod and having a slot therethrough, a clamp secured to said closure and embracing a portion of said rod, thermostatic 'means extending through said slot for regulating said closure, and a hoodon said closure enclosing said thermostatic means on one side thereof and forming a seal for preventing the passage of liquid through said slot.

. HARRY T. VOOLSON.

.ANDREV O. BURG 1S3. 

